I thought it was gonna be about the guy who actually made Tetris, but no they cover that in 2 minutes at the beginning and the rest of the movie is about the American copyright lawyer trying to get the rights for Nintendo.
It's literally all about how bad the USSR is and how good corporations like Nintendo are. When the American arrives in Moscow they take his passport down to an evil KGB bunker and the whole movie shifts to being tinted blue and grey.
There's literally a scene where the Russian programmer says to the American "we want to be free, we want your coca cola and Levi's jeans". If it wasn't so boring this would read as satire of American media in the Cold War.
Hey, that's a nice Stranger Things you got here, sure would be a shame if we inserted countless scenes of David Harbour getting beaten up in a Gulag that completely ruin the tone and pacing just to point out that Gommunism is in fact no iPhone Venezuela 150 trillion dead